Power supply: Three-phase AC 380V, 50Hz; Single-phase AC 220V, 50Hz; AC 220~660V, 50/60Hz (optional)
Ambient Temperature: -20°C to +60°C; -30°C to +70°C (optional)
Protection Class: IP65 (IP67 optional)
Relative Humidity: ≤95% (at 25°C)
Introduction of Electric Actuator of Multi-Turn Series BD30-C8
Electric Actuator of Multi-Turn Series BD30-C8 is a reliable core device for industrial process control. It belongs to the BD-C8 line with robust design and stable performance. Electric Actuator of Multi-Turn Series BD30-C8 delivers a max output torque of 350N.m. It offers flexible speeds from 12rpm to 144rpm for diverse valve control. It adopts double sealing structure to reach IP68 protection grade. The structure ensures durability in harsh outdoor working environments.
Electric Actuator of Multi-Turn Series BD30-C8 has an aluminum alloy housing at 30Kg. Its compact size makes on-site installation much easier. It features flanges complying with ISO5210:2017 standards. Non-standard flange customization is available for specific user needs. Electric Actuator of Multi-Turn Series BD30-C8 integrates torque, stroke control and opening indicator. It enables precise valve switching and real-time position monitoring.
It adapts to a working frequency of up to 60 times per hour with a 33.3% duty cycle, and maintains stable operation in a temperature range of -30℃ to +70℃. What’s more, Electric Actuator of Multi-Turn Series BD30-C8 has undergone rigorous performance testing and structural optimization. It also features simple on-site installation, convenient debugging operations and a long service life in practical application. In addition, optional explosion-proof versions are available, which are specially designed to fit explosive gas and dust hazardous industrial areas.
This design further expands its industrial applicability widely. Electric Actuator of Multi-Turn Series BD30-C8 is a professional multi-turn electric actuator. It lays a solid foundation for safe industrial pipeline system operation. It guarantees efficient running of various industrial process control systems.
Core Technical Performance Indicators
- Power Supply: Three-phase: 380Vac±10%, 50Hz±2% (three-phase three-wire system, TN-C); Single-phase: 220Vac±10%, 50Hz±2%; Special power (AC220~660V, 50/60Hz): Available on request (specify when ordering)
- Input Signal: No proportional control function; Only for on-off control scenarios (no DC4~20mA input); Supports DC24V, AC220V or dry contact (passive) signals
- Output Signal: 2 groups of limit contacts (open/close direction); 2 groups of over-torque contacts; 1 set of opening indicator signal (optional 4~20mA); 1 set of fault alert output contacts
- Output Contact Rating: 250Vac/5A (both limit and over-torque contacts)
- Output Current Load Impedance: ≤750Ω (for optional 4~20mA position feedback)
- Protection Level: IP67 (standard); IP68 (optional)
- Ambient Temperature: -30℃~+70℃; Optional range (-40°C to +60°C): Available on request
- Relative Humidity: ≤90% (at 20±5℃)
- Duty Cycle: Intermittent operation; Continuous working time ≤15 minutes; Working frequency ≤60 times/hour; Duty cycle of working time ≤33.3%
- Lubrication: Advanced grease (suitable for working temperature range corresponding to the actuator’s ambient temperature adaptability)
| Speed (rpm) | 12 | 24 | 36 | 48 | 72 | 96 | 144 | Weight(Kg) | |
| Rated Totque(N.m) | Three Phases | 350 | 330 | 300 | 210 | 180 | 145 | 105 | 30 |
| Motor Power(KW) | Three Phases | 0.37 | 0.75 | 0.75 | 0.75 | 0.75 | 1.1* | 1.1* | 30 |
| Stick current (A) | Three Phases | 6.9 | 13 | 13 | 13 | 13 | 20.19 | 20.19 | 30 |
| Rated current (A) | Three Phases | 1.4 | 2.23 | 2.23 | 2.23 | 2.23 | 3.34 | 3.34 | 30 |
Application Scope of Electric Actuator of Multi-Turn Series BD30-C8
Electric Actuator of Multi-Turn Series BD30-C8 covers a wide range of core industrial fields with stable performance. In the power industry, it takes on a crucial valve control role for key pipeline systems. It regulates valves in thermal, hydropower and nuclear power plant pipelines precisely. It also guarantees steady and reliable transmission of various industrial media. Besides, it adapts seamlessly to the harsh conditions of the petroleum and chemical industry. It manages process valves in oil refining and chemical synthesis with excellent sealing and pressure resistance.
Moving beyond heavy industry, this actuator extends its application to metallurgical and shipbuilding sectors. It perfectly matches industrial valves in smelting furnaces and ship pipeline systems. It also resists on-site vibration and sudden temperature fluctuations effectively. In the light industry field, it serves food and papermaking industries well. It controls medium conveying valves to meet the industry’s strict hygiene requirements. It also fulfills the stable operation needs of light industrial production lines. At the same time, it plays a positive role in urban infrastructure operation. It operates valves in sewage treatment and water supply pipelines, and controls drainage and ventilation valves efficiently.
In addition, BD30-C8 is available with an optional explosion-proof version. This version adapts to IIA-IIC grade T1-T4 explosive gas environments effortlessly. It also fits IIIA-IIIC grade T130℃ explosive dust working sites perfectly. It thus acts as an ideal control device for chemical workshops and gas stations. With such strong multi-scenario adaptability, it gains wide recognition in the industrial field. It has also become an indispensable core component in modern industrial process control.
Travel Control Mechanism
Electric Actuator of Multi-Turn Series BD30-C8 is equipped with a highly flexible travel control mechanism for accurate valve stroke management. This mechanism consists of a decimal gear set, actuator rod, cam and micro switches, functioning as a precise counter during operation. The drive pinion in the reducer drives the counter, converting the output shaft’s rotation into precise stroke control.
For valves requiring multi-turn control, users can rotate the cam by 180 or 270 degrees to trigger the micro switch. This adjustment significantly enhances Electric Actuator of Multi-Turn Series BD30-C8’s compatibility with different valve types. The mechanism is fitted with two pairs of micro switches—two for the open direction and two for the close direction—each with normally open and normally closed contacts. All contacts connect directly to the actuator’s wiring terminals, meeting the complex control circuit needs of industrial sites like power stations.
BD30-C8 adopts high-precision mechanical transmission with tight gear fit. This design ensures consistent stroke control over long-term use, effectively avoiding valve operation errors caused by mechanical wear. It maintains reliable performance in all working conditions, providing stable and accurate valve control for industrial systems.
Field-Adjustable Opening Indicator of BD30-C8
The field-adjustable opening indicator is a key functional component of Electric Actuator of Multi-Turn Series BD30-C8, dedicated to accurate valve position indication and real-time signal transmission. It is composed of a precision reduction gear set, adjustable gear, clear opening dial, cam, micro switch and high-sensitivity potentiometer, ingeniously designed for convenient on-site debugging and operation. Operators can freely adjust the gear to perfectly match the valve’s switch turns, with intuitive turn marks on the column enabling quick and precise operation.
In actual use, the operation of Electric Actuator of Multi-Turn Series BD30-C8 syncs flawlessly with the indicator’s display. As the valve smoothly opens and closes, the dial rotates at a steady reduced speed, and its high-precision pointer displays the valve’s actual position with exceptional accuracy. Meanwhile, users can flexibly adjust the dial’s maximum angle to fully align the visual indication with the real valve position. Moreover, the potentiometer wiper links tightly to the dial in real time, stably sending live valve position signals to the remote control room, thus achieving clear and reliable remote position monitoring.
Additionally, the indicator houses a micro switch and cam. When Electric Actuator of Multi-Turn Series BD30-C8 runs electrically, the cam rotates to trigger the switch periodically. This action makes the control room indicator lights flash, feeding back the actuator’s real-time working state directly. The indicator clearly shows five valve states, helping operators grasp the status intuitively and providing solid data support for the safe running of industrial control systems.
Related Products: Quarter Turn Electric Valve Actuator BJ-Q3 Series
The BJ-Q3 Series quarter-turn electric valve actuator serves as a key field control component for process automation. It features a compact, lightweight aluminum alloy housing that delivers an attractive appearance and dependable performance in demanding applications.
Equipped with non-intrusive setup via a handheld programmer or local knob, the unit uses a dot-matrix LCD to clearly show real-time position, limit settings, operating status, and alarm information in multiple languages, numerical values, and graphical formats. It conforms to ISO 5211:2017 and GB/T 12223-2023 mounting standards, supports customized connection solutions, and provides IP67-rated (with optional IP68) explosion-proof protection for harsh industrial environments.
In addition, the actuator supports Modbus, Profibus-DP, and HART communication protocols to satisfy various industrial networking requirements. The BJ-Q3F split-type model further enhances reliability under extreme conditions, enabling efficient, safe, and tailored control solutions for power, oil and gas, chemical, metallurgical, and other key industrial sectors.
